This model of casing was the only known Dalek casing that fired projectile weapons. The casing was based around the Mark Two Special Weapon casing; however the shoulder area was re-designed to allow for the containment of a number of high-yield explosive devices. Casings of this type were utilised only rarely, seeing success on a number of battlefields.
Externally, the casing mimicked the design of the Mark Two Special Weapon casing for the most part. The fifty-two (52) sensor globes around the skirt-base of the casing fed the advanced computer with continuous environmental data – wind speed and direction, local gravity etc. which enhanced the casing's ability to land its explosive projectiles where they would most devastate the enemy. The "head" dome of the casing was the same as that of the Mark Two and the same advanced computer systems were located within its protective shell. The targeting software package was unique to this package, dealing as it does with projectile rather than energy weapons.
The mid-section of the casing featured a large bomb hold. To accommodate both the payload and the habitation module, the midsection of the casing bulged out from the casing, appearing almost as a ring around the casing's midriff. The habitation module at the centre of the casing was protected by a buffer system. A number of high-yield explosives were housed in the outer ring and a belt mechanism fed them into the firing chamber at the front of the casing. A launch tube for the projectiles was fitted to the front left of the casing, and a target acquisition arm on the right supplemented the telemetry being received from other Dalek units and from the casing's sensor globes. The mid-section was rotatable, allowing the Bombardier to fire in a three-hundred and sixty degree arc.
Internally, the casing was barely changed from that of the Mark Two casing. A smaller power plant allowed the casing to function the same as the Mark Two – little power was required for the weapon system. The saved space was taken up by the buffer system that protected the nutrient tank beneath the mid-section and the habitation module in the centre of the casing. Motive speed remained constant with previous Special Weapon Casings.
This is a conjectural design. Bombardier Daleks were mentioned in several of the Virgin New Adventures series of novels.